Wolf–Rayet (WR) can mean:
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Wolf–Rayet star
Wolf–Rayet stars, often abbreviated as WR stars, are a rare heterogeneous set of stars with unusual spectroscopy, spectra showing prominent broad emission lines of ionised helium and highly ionised nitrogen or carbon. The spectra indicate very ...
, a type of evolved, massive star
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Wolf–Rayet galaxy, which contains large numbers of Wolf–Rayet stars
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Wolf–Rayet nebula, which surrounds a Wolf–Rayet star
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